Wrought-metal joist-hanger



(No Model.) 7

J. H. VAN DORN.

WROUGHT METAL JOIST HANGER.

No. 537,504. Patented Apr. 16, 1895.

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STATES PATENT WROUGHT-METAL JOlST-HANGER.

SPECIFICATION forming part of Letters Patent NO. 537,504, dated. April16, 1895. pp a n fi August 31, 1894:. Serial No. 521,794:- (No model.)

T at whom it may concern.-

Be it known that I, JAMES H. VAN Donn, a citizen of the United States,residing at- Cleveland, in the county of Ouyahoga and State of Ohio,have invented certain new and useful Improvements in Wrought-Metal Joist-Hang ers; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to wrought metal joist hangers; and the object ofthe invention is to produce a wrought metal joist hanger which shall besufficiently strong for the intended use, and which shall be cheaperthan the wrought metal joist hangers which have been made heretofore.

The invention consists in the described hanger and the blank from whichit is made, substantially as hereinafter described and claimed.

In the drawings Figure 1 is a plan view of a wrought iron bar from whichthe blanks are cut, and it shows the manner of cutting said bar toproduce the blanks with no considerable Waste of material. Fig. 2 is anend view of said bar. Fig. 3 is a perspective view of a completedhanger. Fig. 4. is a perspective View of another hanger of slightlymodified form. Fig. 5 is a perspective view of the blank from which saidhangers are formed; and Fig. 6 is a perspective view of a double hanger.

In the manufacture of the described hanger I employ a Wrought iron bar Ahaving on both edges of the web a. a thickened strengthening riba,-whicl1 bar may be rolled into the described form. The sectionsforming the hanger blanks are alternately cut from opposite sides ofthis bar; and as shown in Fig. 1 this is done by cutting the web of thebar diagonally in opposite directions on the lines b b, and cutting offthe rib on the short side of the sections thus formed, leaving said ribconnected to and projecting from the ends of the adjacent sections. Thesaid ribs are then cut transversely on the lines at d to separate thehanger blanks ;-all of which is shown in Fig. 1. Each of the blanks thusformed has unequal parallel sides and oppositely inclined ends, and ithas a thickened strengthening rib a on the long side,-*which ribprojects be yond both ends thereof forming the arms a 0. as shown inFig. 5. The hangers are formed from said blanks by bending them on thelines o (2, thereby forming a horizontal shelf a and two parallelvertical sides a a. The joist to be supported by said hanger liesbetween said sides a a and rests upon said shelf a The arms a a are bentbackward at the points where they join the body of the blank, as shownin Figs. 3, 4. and 5, and these arms afford the means for connecting thehanger to a beam or to a wall. The ends of these arms may be sharpenedand driven in. They may be screw threaded and pass through the beam andbe held by a nut of, both of which constructions'are shown in Fig. 4.The arms a a maybe bent into hook form, as

shown in Fig. 3, whereby they are adapted to hang from the top of abeam. A double hanger, as shown in Fig. 6, may be formed by not cuttingthe rib which connects two hanger blanks.

Having described my invention, I claim 1. A blank for a joist hangerconsisting of a wrought metal plate having a thickened rib on one edgewhich rib is extended beyond said plate on both ends thereof,substantially as and for the purpose specified.

2. A blank for a joist hanger consisting of a wrought metal platehaving-unequal parallel sides and oppositely inclined ends, and having athickened rib on the edge of the long side, which rib is extended beyondthe plate at both ends thereof, substantially as and for the purposespecified.

3. A wrought metal joist hanger consisting of a plate bent on lines o,and c, forming the horizontal shelf a and the two parallel sides a ahaving a thickened strengthening rib or on the rear edge of said shelfand sides, and having said rib extended beyond both sides and bentbackward to form the supporting arms or a substantially as and for thepurpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES H. VAN DORN.

Witnesses:

E. W. Mownnv, E. L. THURSTON.

